System of heating storage-water.



I y J. L. GURRAN.'v

SYSTEM 0F HEATING STORAGE WATER.

APPLICATION FILED APR. 20, 1907.

Patented May 25, 1909.

'i UNITED STATES PATENT oEEioE.

.' IEREMIAH L. (URRAN, OF SYRAUUSE, NEW YORK;

SYSTEM OF HEATING' STORAGE-WATER.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed April 20, 1907. Serial No. 369,357.

y l k./'lhisinvcntion relates to an improved sys tem of heating storagewater in which steam is employed as a heating agent and involves n theuse of a shell or casing having one chamber in circuit with a steamgenerator for the l circulation of steam and lreturn of the water ofcondensation and a separatechamberl in circuit with a suitable reservoirin which the hot Water is to be stored. Y

`My main object is to provide a simple and comparatively inexpensivewater heating vmedium in the circulating system between a steamgenerator and storage tank to heat the water in transit through thecirculating system and to maintain a reserve of hot water in '2 *5 thereservoir and to therobypobviate the necessity for the usual interiorcoils ol such reservoir which are not only expensive but add materiallyto the Weight and cost of manufacture of the reservoir.

One ofthe objects, therefore, is to simplify thestructure and reduce thecost of the storage tank or reservoir by associating a water heatingchamber with a steam heating chainber in such manner that the waterabsorbs the heat of the steam while in transitthrough the circulatingsystem.

`Other more speciic objects and uses will be brought out inthe'following description. rIn the drawings-Figure 1 is anelevation 40partly in section of a storage tank or reservoir' "j and a portion of asteam generator together with niy improved water heater connected incircuit with the steam generator and storage tank. Fig. 2 is alongitudinal sectional view ofthe water heating device seen in Fig. 1 inWhichthe steam and water chambersl are relatively i'iXed.

In order to demonstrate the practicability of my invention I have shownin Fig. 1 a water heating device consisting of an outer tubila'r'shellband an' inner tubular shell -2- arranged lengthwise and centrally`within and of somewhat smaller diameter than the interior diameter ofthe outer shell lwhich latter is connected near one end by a pipe-3f tothe steam dome ,of a suitable steam generator twhile the o po-' site.end of said outer shell is connected )y a ipe -5, to the steam generator-4 usually below the water line so as to establish a complete steam andwater circulating system between tin` outer shell -1 and steamgenerator.

The inner tubular shell -2- is connected at one endby a pipel --6- toone end of a suitable storage tank 7 and the opposite end of this innertubular shell --,-2-'- is connected by apipc MS to 'the oppositc end ofsaidstorage tank thereby establishing a complete circulating systembetween the storage. tank and inner tubular shell --2- of the heater.

In the device shown in Figs. l and 2 the inner and outer shells --1- and---2--.are

relatively lixed together by making them in. -tegral or otherwiserigidly uniting them-and although l have shown the opposite ends of theouter shell -2-- as connected in. circuit with the storage tank, it isevident that this order ot' arrangement may be reversed without.-departing from the spirit of this invention.

As previously stated, the innervtube is of relatively smaller diameterthan the interior diameter ol the surrounding outershell 1 leaving anintervening comparatively shallow chamber -9-- which is in communicationwith the steam generator --4- through the medium oll the pipes -f-3---and 5; and is substantially co-extensive with the length ol' the shellselm and ^2- This chamber MOM is, therefore, adapted to reci-"ive steamfrom the generator -Lt-M while the. inner tubular shell --2-. is adaptedto receive water and this shell 2M containing the Water is, therefore,entirely enveloped by the steam in the chamber t)-E ;thereby heai'zingsuoli Water which is delivered upwardly may be desired andreturnedthrough a pipev .-tllinto the bottom of the tank -\-7- where thecirculation' may 'continue vback through the pipe --8- to th(` watertube As shown in Fig. l, the steam from the y an additional V- where itmay be desired to hold in reserve a other is connected in circuit with astorage generator -4- is delivered into the up er end of the outer shell-1- and cham er -9- where its heat is absorbed by the Water in the tube2* leaving the Water of condensation of the steam to return through thepi e -5 to the generator -4-. These tu ular shells -1- and -2-constitute a complete Water heating device adapted to be attachedorconnected in any steam circulating system in circuit with any storagetank quantity of hot Water, and the invention,

. therefore, lies in the association of two shells one within the other,one of Whichisfconnected in circuit with a steam generatorwhile thetank.

The Water shell as -2 maybe connected by a pipe -12- toany source ofWater supp y not necessary to herein illustrate or describe but forconvenience of illustration of the practicablity of feeding the Waterdirect to t e water tu) v reservoir -7 to said Water tube, I lhave shownthe pipes -8- and 12- as connected to said water tube by a tee -13-having upwardly converging Waysv 14- and -15* both of which may deliversimultaneously into the bottom of the tube 2- without creating a backpressure in either one of the "pipes -8- or *l2-3 said e -2- and alsofrom the separated by a` partition 'tegral with the other and forming aheating chamber, said inner section of greater length than said outersection whereby the ends of the inner section will of the outer section,sald inner section having an outlet at one end and an inlettat the otherend and constituting a Water receiving chamber, and said outer sectionhaving an inlet in one side and an outlet in its other side.

2. In a system of heating storage water, a

heating 'shell comprising an inner and an outer section, one arrangedWithin and formed integral with the other and forming a heating chamber,said inner section having an outlet at one end and an inlet at the otherend and constituting a Water receiving chamber and said outer sectionhaving an inlet in one side and an outlet in its other side.

In witness whereof I have hereunto set my hand this 15th day of April1907.

y JEREMIAl-I L; CURRAN.

Witnesses i' H. E. CHASE,

MILDRED M. NQTT.

project from the ends

